dallas fisher said the u.s. central bank must set limits on its monetary policy. the hawkish fisher warned the size of the fed asset purchase program is abnormal saying he opposes an extension of operation twist. the latest s&p case shiller index due later today is expected to show continued improvement for home prices in 20 major u.s. cities. providing further evidence of a long term rebound for the sector or sdw does it. our next guest is eric glean, chief of u.s. rates research and strategy at td securities. paul dale is also still with us. eric, good morning. first to you. tell us why you're concerned the housing recovery might not be for real. >> well, we have seen fits and starts in this recovery. i do think it is for really. we won't be seeing an upward move, but there are encouraging signs. we're seeing home prices improve across most regions of the company. inventories on a monthly basis are half of what they were two or three years ago. and when you think about do i want to buy a house or not, you want to see home prices at least stabilize. i think you'r